The Toarcian Oceanic Anoxic Event in the Ionian Zone, Greece
| Autor: | Vasileios Karakitsios, S. Kenjo, Hugh C. Jenkyns, N. Kafousia, Emanuela Mattioli |
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| Přispěvatelé: | Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement [Lyon] (LGL-TPE), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
chemistry.chemical_classification
Total organic carbon 010506 paleontology Excursion Paleontology [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Biostratigraphy 010502 geochemistry & geophysics Oceanography 01 natural sciences Carbon cycle chemistry Continental margin 13. Climate action Chemostratigraphy Isotopes of carbon Organic matter 14. Life underwater Ecology Evolution Behavior and Systematics Geology ComputingMilieux_MISCELLANEOUS 0105 earth and related environmental sciences Earth-Surface Processes |
| Zdroj: | Paleogeography, Palaeoclimatology, Palaeoecology Paleogeography, Palaeoclimatology, Palaeoecology, 2014, 393, pp.135--145. ⟨10.1016/j.palaeo.2013.11.013⟩ |
| DOI: | 10.1016/j.palaeo.2013.11.013⟩ |
| Popis: | The Early Jurassic was characterized by a global disturbance of the carbon cycle known as the Toarcian Oceanic Anoxic Event (T-OAE). This event is recorded worldwide by a negative excursion in marine and terrestrial carbon-isotope ratios, typically interrupting an overarching positive trend attributed to large-scale burial of marine organic matter under oxygen-depleted conditions. The negative excursion is attributed to introduction of isotopically light carbon into the ocean–atmosphere system. Three sections from the Ionian Zone in Greece have been analysed in terms of biostratigraphy, Total Organic Carbon (TOC), CaCO 3 , δ 13 C carb , δ 18 O carb and δ 13 C org . On the basis of bio- and chemostratigraphy, the age of Pliensbachian–Toarcian formations from the Ionian Zone in Greece has been refined and the geochemical signature of the T-OAE recognized. All sections illustrate the characteristic negative excursion in carbon isotopes from both carbonates and organic matter and, in only one locality, a positive excursion has also been recorded. The recognition of the T-OAE in this part of the Tethyan continental margin offers additional information on the global impact and amplitude of this important Jurassic palaeoceanographic event. |
| Databáze: | OpenAIRE |
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